{% for _ in range(2) -%}
--- using ---
21	22	23	2000
31	32	33	3000
41	42	43	4000
51	52	53	5000
21	22	23	2000
31	32	33	3000
41	42	43	4000
51	52	53	5000
21	22	23	2000
31	32	33	3000
41	42	43	4000
51	52	53	5000
21	22	23	2000
31	32	33	3000
41	42	43	4000
51	52	53	5000
21	22	23	2000
31	32	33	3000
41	42	43	4000
51	52	53	5000
--- on ---
21	22	23	22	21	23	2000
31	32	33	32	31	33	3000
41	42	43	42	41	43	4000
51	52	53	52	51	53	5000
21	22	23	22	21	23	2000
31	32	33	32	31	33	3000
41	42	43	42	41	43	4000
51	52	53	52	51	53	5000
21	22	23	22	21	23	2000
31	32	33	32	31	33	3000
41	42	43	42	41	43	4000
51	52	53	52	51	53	5000
21	22	23	22	21	23	2000
31	32	33	32	31	33	3000
41	42	43	42	41	43	4000
51	52	53	52	51	53	5000
--- on different name ---
23	21	22	22	21	23	2000
33	31	32	32	31	33	3000
43	41	42	42	41	43	4000
53	51	52	52	51	53	5000
23	21	22	22	21	23	2000
33	31	32	32	31	33	3000
43	41	42	42	41	43	4000
53	51	52	52	51	53	5000
23	21	22	22	21	23	2000
33	31	32	32	31	33	3000
43	41	42	42	41	43	4000
53	51	52	52	51	53	5000
--- incompatible ---
--- reuse column from left ---
11	12	13	11	11	11	1000
21	22	23	21	21	21	2000
31	32	33	31	31	31	3000
41	42	43	41	41	41	4000
51	52	53	51	51	51	5000
11	12	13	11	11	11	1000
21	22	23	21	21	21	2000
31	32	33	31	31	31	3000
41	42	43	41	41	41	4000
51	52	53	51	51	51	5000
{% endfor -%}
